Train-stopping system.



J P. WEBB J12" TRAIN STOPPING SYSTEM. APPLIUATION FILED 538,190),

g32 gg6 Patented Aug. 31, 1909.

2 SHEE -S SHEET 1.

' UVVE/VTUR JGLZJLF WEBB J71.

J. F WEBB, JR. TRAIN STOPPING SYSTEM. APPLICATION TILED FER-3.1909.

932,926. PatentedAug. 31, 1909.

MEETS-SHEET 2.

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I UNITED STATES "PATENT. orFIcE.

JEAN r. WEBB, m.,'or NEW YORK, n. Y., Assmn'on ro ma ntnc'i mc sIeNAGRAPH AND snmarnoan company, mcoaromrnn, or NEW YORK, N. Y.

TRAIN-STOPPING SYSTEM.-

Specification of Letters Patent. Patented Aug. 31, 1909.

Original application filed September 1, 1908, Serial is. 451,227. Divied'and this application filed February a,

' 1909. Se1ia1N'o,-75,843.

To all whom it may concern:

Be it known that I, JEAN F. WEBB, 512,, residing at New York city, in the county of New York and State of New York, have'invented certain new and useful Improvements in Traiirstopping Systems, of which the following is a specification.

This application, which is a divisional In' this application I have disclosed an improved construction of contact maker, but

. Imake no claim per 86 theretoin this ap I be read in connection with Fig. 1, by joinv plication as such contact maker forms the subject-matter of another application filed August 26, 1908, Serial No. 450,361 I have also disclosed a special form of train carried train stopping mechanism'which acts incon junction with the track circuit herein disclosed, and I make no claim per so, to such train carried mechanism in this application,

as such forms a part or the subject-matter.

in my original applicationfaforesaid;

In the drawings, Figure 1,-is a diagrammatic. view of my improved track circuits. Fig. 2, is adiagrammatic View of the train carried mechanism that cooperates with the track circuit, apart of the traclrand track contacts being indicated. Fig. 3, discloses my track circuits for crossed tracks and may ing the lines X-Y of Figs. 1 and 3, tofn I i In the drawings, in which like numerals and letters offreference indicate like parts in all ofthe figures, 1 represents the shaft of a rotary air valve, indicated in dotted lineson F ig. 2 of the drawings,- which air valve is adapted to be' connected to the air brake system,"and is preferably located-at a place not'under direct control of the engihear, such, for instance, as under the seat of the engine cab. I v

- To the valve shaft 1 a gear 1* is attached, the gear 1 meshing with the drive pinion 2 of an electric-motor 2.

S designates'a closed circuit magnet, prefe erably of high resietance, .whichcooperates with the armature 4 that is pivoted at 4* and is adapted to be moved inone directionby a lug 1 on-the gear-.1 at predeterminedtilnes.

The armature 4 has. a. contact maker 4? which, when the armature is dropped, is

adapted to engage fixed contacts 5'and 6 to close the local motor circuit 7 ,which circuit includes a source -ofelectrical energy 8, as

indicated diagrammatically inFig. 2,.of the drawings. The source of electrical. energy 8 has one of its terminals 8 connected to one terminal of the magnet 3,. while the.

other terminal of the ma et. 3, connects with a contacting brush 3 t at bears against the armature 4 when in normal position.

project laterally therefrom, and. engage with track contact members 11,. hereinatter again referred to. Eachiof the contactbrushshoes 10 comprise a'plate 105. from Which;a-series of metallic bristles 10P-p'roject downwardly.

Beneath the plate 10 'is a shoe10 to .en gage; the track contacts 11. The shoe is secured to a rod 10 that projects through the plate 10 and is in turn connected to a knife 12.025 a switch, the stationary contact 12 of iwhich is insulated from but supported on the plate 10 the knife 12' being-pivoted at 12*.

In practice the fixed contacts-l2 of each, of the train carried shoes (the one at the .one side of the train and the othenat the other side) are electrically connected "by a Wire 13, asindicated in F g. 2 of the draw lugs. One terminal 8"of the local or train car ried source of electrical-energy 8 is con" vnetted to one of the knife switch blades-12,

while the knife. switch blade of the other brush shoe is cOnnected-tO the. armature 4,

which armature 4: is 'ivoted at 4 as indibated. A coilsprin-g {i1 10 beneath the plate 10 keeps the switch,

normally closedf 7 fl So far as I have described,..the' manner in which the train carried part of myfim ention operates is best explained as foll'ows-z Assume the trainto be passing along the track, carrying its brush shoe member's- 1'0.1 and a" 0t shown) on the rod local source of electrical energy 8, together with the-magnet 3, motor 2 and air valve 1,

and the cooperating parts; as soon as the train arrives at a pair of track contacts 11, the brush shoe contact makers will engage a such contacts and-electrically connecttherewith. At the same time the'shoe 10 will ride up on such contacts 11v and break the circuit between the knives 12 and the fixed contacts '12". Should the circuit be open between a pair of contacts 11,'then as soon as the brush shoes 10 are in engagement with it to rotateto openthe air valve 1. As

soon-as the valve 1 has been opened the lug 1 will engage the armature 4: and raise the same to-break contact between the fixed contacts 5 and 6 of the motor circuit and at I the same time will again close the circuit at the contact 3 and the armature 4 for as soon as the brushshoeshave left the track con tacts 11 and the knife switches carriedthe'reby have againclosed the short-circuit- I ing means, the current will, as soon 'as the ;1. 1'arn1ature 4 has been raised, again flow t'hro'u'g'h the magnet 3 and hold the armature 4 in its raised position; As soon as the train has come to a stop the engineer may get out of'his cab and return the valve 1 to its closed position, by grasping the handle 1 and turning the gear 1 backward a pre determined distance.

The means for opening and closing the .circuit between the several pairs of track contacts 11 is disclosed in Fig. 1, of the drawings, by reference to which it will be.

seen, I have, for convenience of illustration, illustrated several block sections, which have been marked onthe drawings, block No. 1,

block No. 2 l, etc., it being understood that any number of blocks of any desired length may be provided.

In practice. I, provide a pair of track contacts 29, 29 30, 30 disposed in pairs, one of each pair at one side of the track, and the other at the other side of the track, each pair of contacts 29, 29 and 3O3O may be lo cated at any desired position in theblock, preferably slightly more than a train length rom the btg'inning'and from the end of the block.

At one end of each block, I bridge the track rails 1.7 (which are insulated from one another atl6 to-form the blocks) by a connection containing a high resistance relay having an armature 26 provided with two electrically connected contact points 28 to coiiperate with a pair of fixed contacts 24 trically connected to a common line wire 31 by a leaduSl, which line wire is electrically- -connected through leads 21 with one terminal of a series of auxiliary relay magnets 19, the other terminal of which connects to a batadjacent to block No. 2, connects through a wire 23 with a line wire 23 that is in turn connected with the fixed contact 24 of'the main relay 25 at the beginning of the next succeeding block (block No. 2). The other fixed-terminal 27 of the main relay 25 of block No. 2'connects to a line wire 22, which is in turn connected to the battery 20 of the auxiliary No. 3, which is the next succeeding block.

The auxiliary relay 19, at the beginning of block No. 2, connects with the fixed contact 27 of the main relay 25 (not shown) of block No. 1. The auxiliary relay 19 at the end of block No. 2, connects through a lead 23, with a linewire 23 that connects to the fixed contact 2 1 of the main Y in block No. 3, while the fixed contact 27 of such main relay connects through. a line wire 22 to the auxiliary relay magnet 19, (see Fig. 3) at the beginning of block No. 1, and so on. Q l

Each block is bridged at the end opposite the main relay 25, by a battery 18,. whose terminals are connected with the" respective track rails 17 of the block, as indicated.

Vihen the parts are in the position shown in Fig. 1, the circuits are closed, thus-the pairs: cat contacts 2929*, 30" of all blocks are shortcircuited'thr0ugh the armatures' 19*" and contacts 19 of each relay 19 which are respectively connected to the respective contacts 29 -2930 and 30*, as the case may be.

Should a train enter, say, block No- 2, n; will short-circuit the main relay 25 of block No. 2, and permit the armature 26 thereof to open the circuits at contacts 2d, 27 and 28, thus deenergizing the magnets of auxiliary relay 19 at the end of block No. 1, and of auxiliary relay 19, at the beginning of block No. 3, and opening the armature contact connection between the track contacts 30 30 of block No. 1, and the track contacts 2929. on block No. 3, thus any train passing along blockzNo. 1, toward block No. 2 will have its train stopping mechanism actuated as soon as the brush shoes 10 engage the pair of track contacts 30-30'* at the end of block No. 1, likewise any train in block No. 3, which is moving toward block No.- 2, will be stopped when its train carried shoes 10 engage the pair o'f-track contacts 29--29 at .tery 20. The battery 20 of a relay 19 at one relay 19, at the beginning of block jacent the cross block in one line, the circuit will be opened through certain of said auxiliary relays to open the circuit between cer-' contacts for each-block in the main and cross lines, and an auxiliary relay and a source of electric energy in each block oi the main and cross lines, one auxiliary relay for each pair or" contacts to control the circuit between said contacts, combined with means for normally energizing said auxiliary relays, to normally electrically connect their respective track contacts, and means cooperating with said auxiliary relays in virtue ofwhich when a train enters the cross block 111 one line the circuit will be opened through certain of the auxiliary relays to open the circuit betweena pair oi track contacts at each of the blocks on both lines adjacent to the cross blocks.

it). In a track circuit tor train controlling systems, a main line and a second line crossing thereover, each of said lines divided into insulated blocks and each including a cross block. pairs of track contacts for each block, auxiliary relays one for each pair of track contacts and electrically connecting there with to control the electrical connection between the respective contacts, ineans for normally energizing said relays and means cooperating with the relays and their ei-iergizing means whereby when a train enters a block adjacent to the cross block in one line certain of the track cmitact controlling relays in the cross block oi one line and in the.

blocks adjacent to the cross'block of the other linewill be deenergized toopen the electrical connection between certain of the track contacts of said blocks.

11. In atrack circuit for train controlling mechanisms, a main line and a cross line, each divided into sectionalized blocks and including crossing blocks insulated from one. another, "fixed track contacts arranged adjacent to the tracks of each block of the main and cross lines, relays for electrically connecting certain of said fined contacts, combined irith means in rerta in of the blocks in one line electrically connectingcertain the relays of the other line.

12. In a track circuit for train controlling mechanisms, a nain line and a cross line, each divided into section'alized blocks and.inclu d. IQ CI'OSSItDg blocks insula ed from one another, fixedtrack contacts arranged adjacent to the tracks of. each block-0t the main and cross lines, relays for electrically connecting. certain of said fixed contacts, combined with means in certain of the hlocksin-oneline; electrically connecting certain of the relays" of the other line and train controlled means cooperatingwith said electrically connecting means for controlling the operation of-the same.

13, In a train stopping system, a track circuit section comprising 'sectionalized tracks insulate-d from one another and'divided into blocks, a relay each block comprising a relay magnet bridged aeross' the track sections of a blockand a plurality of movable and fixed contacts, a source of electrical energy for each block bridged across the tracks to energize the relay, pairs of track contacts for each block arranged one or each pair at one-side of the track and the other of the pair at the other side of the track, an auxiliary relay having a fixed and a movable contact connected one to'each of a pair of trackcontacts, said auxiliary relay also including a relay magnet, a source of electrical energy in circuit with said magnet and electrically connected to one ofthe fixed contacts or the first mentioned relay," saidauxihary relay ma -net being electi'cally connected to one of the movable contacts 'of said first mentioned relayj I 14.111 a train stopping systeln a track circuit section comprising sectionalized tracks, a main relay bridged across said tracks in each section, and means for energizing said relay. when the track is clear, said relay having an armature and fixed con tacts normally closed whenthe relay is ener: gized,1t racl: contacts arranged adja'centto the track inieach section,- auxiliary relays having contacts connected with said track contacts, :a:coopcrative connection between the auxiliary relays and certain of the contacts of certain of said niain relays to nor- .mally short-circuit said trackcontacts when the main relay is energ zed and to open the track contacts when the, main relay becomes deenergized.

l5. Ina train stopping system, sectionalized tracks arranged in blocks and itormin'g part of an electric circuit, a main relayi-aud a source of electric energy for each block in series with the tracks of said block, track-i contacts arranged in pairs for each block, an auxiliary relay controlling each pan of contacts, and means cooperatively connect ing certain of said auxiliary relays with cc'r tain of said inain relays whereby the'auxiliary relays are controlled 'frointhe main rey i i 16. In a train stoppinglsystein, sectionalized tracks arranged in blocks and't'orming part ofan electric circuit, a main. relay and a amma 6f eleiric energy 63? each Meek in wiyfih theitmcks of said 00k, track ramiacs to contra electrica] wmzection be tween said Qontasts of each pair, the main relay of one' bloc'k being electrically c0n-' necfiefi "with all auziiiiary why of eac'h'block adfiaceni; to said one block.

I JEAN WEBBQJ Witnesses Q v wHARLEs, Eu. EYENNEDY, H. Ln- ATKINSQN 

